Safety razor



.1. MuRos SAFETY RAZOR June 24, 1930.

Filed Jan. 29, 1929 2 sheets-sheet 1 INVENTOR ATTORNEY lJune 24, 1930. 1, MUROS 1,766,399

SAFETY RAZOR Filed Jan. 29, 1929 2 Sheets-Sheet 2 45 rr F 45 f l 36 jrg/5, "7

j t a INVENTOR BY M ATTORNEY seA JOSEPH MUROS, OF NEW YORK, N.

Patented June 24, T93@ SAFETY RAZOR Application filed January 29, 1929. Serial No. 335,896.

The present invention relates to improvements in safety razors, and more particularly to a magazine razor of the type which employs blades in stacked relation and feeds them successively to shaving position, the blade fed to shaving position ejecting at the same time the u'sed blade from the blade bolder.

Razors of this type are old and well-known. One serious dilculty experienced in the operation thereof consists in that the feeding mechanism of the device is apt to jam. The result is that, unless the user is fully acquainted with the construction of the device and is capable of disassembling and reassembling the elements thereof, the jammed razor must be returned to the .factory for repairs. This is objectionable not only because of the trouble connected with such a procedure but also for the reason that the use of the. razor is lost for some time.

' The present invention relates to improvements in razors of the Schick type, one form of which is described in U. S. Patent] #1,655,437, granted January 10, 1928. .From

an examination of the razor described in said patent it would appear vthatcthere are two general causes, incident to the construction thereof, which bring about jamming of the feeding mechanism. lt will be readily understood that, when the feeding plunger of the said razor is moved to the endof its outward stroke, the topmost blade of the stack is causedy to rise and is thereby brought into When then b d the path of the said plunger. the plunger is moved on its inwardor feeding stroke, the said topmost blade is engaged by the plunger whereby the blade is fed through the discharge opening in the razor handle toward the blade holder. `Ordinarily, no jzmming takes place when the feeding stroke o th sitioned on the holder. However, if, for some reason, the feeding stroke is not completed and the plunger is moved in the opposite direction as far as the construction will permit, the rear end portion of the blade below the topmost blade is caused to rise into the path of the plunger. When thereafter it is attempted to move the plunger again on its handle and it er. Therefore, the said finger into and through the dischargee plunger is completed and theblade pofeeding stroke,- the blade below the topmost blade prevents such operation because'it can'- not be advanced toward the discharge open^ ing inthe razor handle, withthe result that the feeding mechanism is jammed. 'llhe reason for this is that that end portion of the blade below the t'opmost blade, which is adjacent the discharge opening, is still located within the magazine, so that that/'end wall of the magazine which is located adjacent the discharge opening acts as a stop. It will be also noted from an examination of a razor of the Schick type that, when the feeding plunger 'is disposed wholly Within the razor is moved from such position back and forth a short distance, it carries by friction the topmost blade of the stack toward the discharge `opening. When the topmost blade is thus partly advanced and the feeding plunger is moved to the end of its feeding stroke, it jams because the discharge opening is of a size to permit ejection of a single blade only and cannot accommodate, at the saine time, the ej ecting linger on the feeding plungwhen it is attempted to force opening, when a blade is therein, the plunger will be jammed.

The main object of the present invention is to generally improve the construction of safety razors of the type mentioned with a view of overcoming the difficulties above referred to.

Anotherjobject of the invention is to emo y in a 4razor of the type mentioned antijamming features so designed that they may be applied thereto, first, without changing the construction thereof; second, without undul complicating the design; and, third, without materially increasing the cost of production ofthe same.

With these and other objects in view, which will more fully appear as the nature of the invention is better understood, the same consists in the combination, arrangement, rand construction of parts yhereinafter described, pointedout inthe appended claims and' illustrated in the accompanying drawings, it being understood that many changes may be made in the size and proportion of the sevtiti said means being in the case illustrated in the .is a section taken on drawings in the form o f a pawl on the magazine support, co-operating with a notch in the plunger. The invention consists of lfurther eans which prevents the topmost blade fro being moved forward by friction between the same and the feeding finger of said plunger. ,l

Une of the many possible embodiments of the invention is illustrated in the accompanying drawings, in which Figure 1 isa side elevation of a safety razor constructed in accordance with the 'present invention, lthe blade holder being shown in position in which a blade may be fed thereunto; Fig. 2 is) a central vertical section taken through the handle and the elements located therein, the blade holder being shown in elevation; Fig. 3 is a top elevation o'f the magazine support, magazine and feeding plunger of the device, the plunger being shown at the beginning of its feeding stroke; Fig. 4 is a bot om lplan-view of the elements shown in Fig. the plunger occupying the same position;.Fig. 5 is a bottom plan view of the said elements with the plunger at the end of its feeding stroke; Fig. 6 is a similar view of a portion of the elements illhs'trated in Figs. 3 to 5, inclusive, showing the position of the pawl which it occupies on the 'feeding stroke of the plunger Fig. 7 is a similar elevation showing the pawl in a position in which it prevents the plunger from completing its outward stroke; 8 line 8-8 of Fig. 5 Fig. 9 is a side elevation of the inner end portion of the feeding plunger; Fig. 10 is an elevation of the pawl of the device; Fig. 1 1 is a perspective view of the inner epd portion of the magazine support; Fig. 12 is an enlarged sectional view of a portion of a blade holder, showing the razor handle, magazine support, magazine and 'feeding plunger iin operative relationsthereto; Fig. 13 is a sectional view similarto the one shown in Fig. 12, certain of the elements being in other positions; Fig. 14 is a side elevation ofV themagaz'ine of the device' Fig. 15 is a top plan view thereof; and Fig. 16 is a section taken on line 16-16 of Fig. 14.

Referring now to the drawings, the nu meral 20 indicates the handle vlof the razor,

the same being hollow and preferably quad- To the ard, as clearly shown in Figs. 12 and 13 of the drawings, while its lower end is open, as

appears from Fig. 2 of the drawings, to per-f mit of insertion thereinto of the feeding mechanism, the magazine support, the magazine and a spring co-operating with the latter, as will be more fully described hereinafter. l

The blade holder does not form part of the present invention, and, therefore, a detailed description ofthe same seems to be unnecessary. lt is suicient to say that it is in the form of an oblong body. havinga blade supporting surface 24, with which co-operates a blade clamping member 25 for fixing the blade 26 in position 'upon the said blade supporting surface in, proper` relation to the guard 27. The blade is whatis'commonly known as-'a wafer blade, having a. single cutting edge. i

The bore 28 of the handle is quadrangular 1n transverser.cross-section and has fitted into it a magazine support 29, which is the form of a channel member, fixed in position within said handle. On this magazine support is slidably arranged a feeding plunger 30, which is also in the form of a channel member, the webs 31 and 32 of the magazine support and the feeding plunger, respectively, being opposed, thatis to say the web 31 of the magazine support abutsagainst one of the side walls 33 ofthe handle and the web.

posite side wall 34 of said handle, as clearly appears from Fig. 2 of the drawings'. Means are provided, not shown, for limiting the outward movement ofthe plunger in relation to the handle and. said magazine support. To the outer end of the plunger is fitted a knob 35,- in the form of a ring, to facilitate manipulating of the plunger and serving also as a stop for limiting the inward movement thereof.

The blades are supplied to the purchaser ready for insertion into the magazine support, they being stacked in a magazine 36, which will be described in detail hereinafter. This magazine is adapted'to slide endwise and fit snug into the magazine support, it

resting more particularly on inwardly extending longitudinal ledges 37 on the side flanges 38 and 38 of the magazine support,

. 110 32 of the plunger is in contact with the op- Y the said ledges being disposed 'a suitable dis tance above the web 31 of said support.

With the magazine co-operates a spring 39, carried by a plug 40, which has an enlarged outer end 41, fitting the knob 35. Forl the purpose of fixing the plug and spring in proper relation to the stack of blades, the spring is provided with a projection 42 which is automatically seated in `an' aperture v43 in the magazine support when"'tl'1e plug is inserted into the handle. after the magazine has been placed thereinto.

x The magazine comprises a bottom 44, a front end wall 45, a rear end-wall. 46 anda side wall 47 Opposite the side wall 47 are formed along the end falls very short flanges 48, engaging the very corners of the cutting edges of the blades, so that the blades may be fed throughA without any injury to the the 'maga'zine is adapted to rest. These resilient supporting means are so dimensioned that, when the feeding plunger is moved on cutting edge except possibly at the tip of each end. In the magazine bottom is formed an opening 44', through which the spring 39 projects, as clearly shown in Fig. 2 of the drawings. This spring bears against' the stack of blades, so that the are constantly being 'pressed toward the side wall 34 of the handle, the topmost blade bein brought into abutment with the inner face o the last-mentioned lwall when the feeding plunger is moved on its outward stroke, as will clearl magazine and the flange 48 on the front end wall thereof are split, as indicated at` 49 'adjacent the bottom edge of said front end wall, thereby permitting the latter to be forced. outwardly from the'position shown in 12 of the drawings into that shown in .;.Fig.j13, the said front e'n'd wall then swinging pn its bottom edge on the magazine bottomiV ,The said frontend wall-is provided with a projection 50 on its outer' face, which is adapted tp' 'be seated in a recess 51 in the standard 21,` said projection and recess serving to position the magazine on its support. As appears from Figs. 12 and 13of the drawings, the recess 51 is larger than the transverse cross-section of the projection 50, for ab purpose hereinafter to be described. It will be noted from Figs. 11 'to 13, inclusive, of the drawings that adjacent theinner end of the magazine support the ledges 37 thereon are each providedwith two longitudinal incisions 52, and the material of the ledges b'etweenthe said incisions is bentinto the` magazine support, constituting resilientsupporting means on which the inner' end of its outward stroke andV has passed a substantial distance beyond`the front end wall'45 of the magazine (Fig. 12) the inner end of the magazine is moved by the said resillent sup- 'orting meanstoward the side wall 34 of the andle, the free transverse edge of the ,sald

"clined projection on the oppositean Athatfonthe-.feeding stroke of the it engages the inclined face 61 of the pawl end wall being then positioned at a distance from the inner surface of the wa1l;3'4 which is less than the thickness of a razor blade.

The recess 51, above referred to, is of a length lto accommodate'a single blade, the said dis.

charge opening registering with the blade j supporting surface 24 ofthe blade holder when the latter'` is in the position shown in Figs. 1 and 2 of the drawings, when it forms a continuation of the razor handle.

Adjacent theouter end of the magazinesupportextend through theiianges 38 and'.

38 thereof registering openings 56 and 57, respectively, the said openingsl beingvdisposed below the ledges 37'. Into these openings is fitted a pawl 58, shown in detail in Fig. 10 of the drawings, the said pawl |eX- tending transverselyacross the said maga-o Y t db' fhll db- `appear hereinafter. lThe side wall 47 of the Zme Suppor an emg W o y dispose e low the said ledges so 'asnot vto interfere with the insertion of themagazine into the said support. This pawl i'sfslid'able inthel the pawl is providedad] acent its attachment to the spring 59 with its flange below Y As appears clearly from Y a Shoulder 60, and below the said shoulder 1 with an inclined face the pawl is hook-shaped, as shown at 62. Iith'the inclined. face 61- of the pawl is adapted to'. co-operate an inwardly extending inclined projection 63 on the adjacent ange 64 of the plunger, and with the hookshaped end 62 of the said pawl is adapted toro-operate an inwardly extendin in- 66 of said plunger.- The projection 63 is disposed near the knob end of the plunger andthe project-ion 65 adjacent the inner end thereof. The projection 63 is' so positioned plunger,

immediately'before the feeding stroke is 61,- Thefree end of completed, shifting the said pawl toward the flange 6,6[of theplunger and causing` the hook-shaped'end 62 `to project through the opening,57 in the flange 38 support and to engage the forward e ge of the opening 57, whereby the pawl is locked 1n such position (Fig. 5). In-this `position ofthe ma azine j ings:

of the pawl, its shoulder is spacedlfrom the flange 64 of the plunger.V The projection is so positioned on said plunger that it engages the hook-shaped end 62 of the pawl, when the latter isV in its projected position shown in Fig. 5 of the drawings, immediately before the plunger completes its outward stroke, thereby unlocking the said hook-shaped end from the flange 38', of the magazine support and permitting the spring 59 to swing the pawl so as to bring its shoulder 60 into engagement with the web 64 of the plunger. The elements are shown in these positions in Fig. 4 of the drawings. In the free longitudinal edge of the flange 64 ofthe plunger is provided a notch 67 of a size to permit the shoulder and inclined edge of the pawl' 58 to swingI thereinto. This notch is located in rear of the feeding finger 54a distance that. its leading edge^68 is disposed in rear of the shoulder '60 of the pawl 58 when the feeding plunger has completed its outward stroke, as clearly shown in Fig. 4 *of the drawings. This-leading edge eX- tends preferably at right angles to the free longitudinal edge .ofthe flange '64 of the plunger, as appears from Fig. 9 of the draw- It is obvious that, whenthe elements the positions shown in Fig. 4 of the drawings and the plunger is started on its feeding stroke,l the shouldered edge ofthe pawl is projected by. the spring 59 into the notch 67 when vthe said notch is brought into alignment withthe pawl.`l In these positions are in of the-elements, the feeding 'finger projects overfthe rear end portions of the blades in the magazine. ,The purpose of this arrangement will be\described hereinafter.

The operation of this device is as follows: In order to charge the razor with a magazine containing a stack of blades, the plug 40, with its spring 39, is removed from the razor, and the charged magazine slid into the handle. After this the plug and the spring are inserted, the latter passing through the opening 44 in the bottom of the magazine against the innermost of the stack of blades,

as clearly shown. in Fig. 2 of the drawings.

The elements of the razor are then in the posjtions shown in Fig. 2 of the draw-ings, from which it appears that thel magazine bottom l'contacts' throughoutl its length with the 'ledges 37 on the magazine support and .the

free transverse edge of the front end wall45 y of the said magazine is spaced from the'wall 34 of the handle adistance corresponding to the thickness ofsthe feeding finger 54. The

` pawl 58 is then in the position shown in Fig.

5 of the drawings, in which it lockedby the hook-shaped end 62 thereof engaging the forwardedge of the opening 57 in the ange 38 of the magazine support (Figs. 5 land 8).

As soon as the feeding finger is withdrawn from the discharge opening 55v `andi has passed on its outward stroke beyondthe front j end wall 45, the resilient supporting elements of the magazine support shift the front end portion of the magazine toward the handle wall 34, the elements being then in the positions shown in. Fig. 12 of the drawings, from which it appears that the free transverse edge of the 'front end wall of the magazine is disposed from the inner face of the handle wall 34 a distance which is less than the thickness of a razor blade. Therefore, when the plunger is moved back and forth through a short distance, it cannot move the topmost blade beyond the magazine, the friction between the feeding finger and the blad@ being not suflicient to force the front end wall of the magazine intoinclined position. Consequently, the last-mentioned Wall forms a stop for the blade.

In order to feed a blade to shaving position and to eject the used blade, the plunger is taken hold of by the knob 35 and pulled out of the handle as far as the construction permits. The feeding finger isthen in a position in which it uncovers themouth of the magazine, so that the topmost blade of the stack is forced by the spring 39 against the inner face of the handle wall 34, whereby its rear transverse edge is adapted to be engaged by the said feeding nger. Disregarding now the action of the pawland ratchet mech-- 'anism above referred to, it will benoted that;

vancing movement of the. topmost blade starts, its front end portion forces the front end wall of the magazine outwardly into the inclined position shown in Fig. 13 of the drawings, which gives sufficient clearance for the passage of the blade over the said front end wall. When the last-mentioned end wall is forced into inclined position, the front section of the magazine is lowered until the magazine bottom abuts throughout its length against the ledges 37, the resilient sections of the said ledges being caused tomove into the plane of said ledges.

The front en d wall of the magazine returns to it'sA lnormal position and the magazine moves again toward the handle wall 34 as soon as, on the next outward stroke of the plunger, the feeding finger has passed some distance beyond the front end wall ofthe magazlne.

Considering now the actionof the pawl mechanism, it will be noted that when the plunger has completed its outward stroke the pawl is in the position shown in Fig. 4 of the drawings, in which the hook-shaped end 62 thereof is unlocked from the flange 38 of the magazine support and the shouldered opposite end of the said pawl bears against is shown at Aoutward stroke, respectively, v the said' pawl has no function `movement of. the plunger,

messes w the web 64 of the feeding plunger. When now the plunger is moved on its feeding stroke, the shouldered end of the pawl is projected by the spring 59 into the notch 67 in the plunger (Fig. 7), but is immediately unseated from the said notch by the rear edge of the notch 67 acting on the. inclined edge 61 of the pawl. This inclined edge bears against the inner face of the ange 64 until it is brought into engagement with the projection 63, which is immediately before the completion of the `feeding stroke of the plunger. As the feeding stroke is being completed, the 'pawl is moved into the position shown in Fig. -5 of the drawings, in which it is locked by the .hook-shaped end 62 cooperating with theforward edge of the opening 57 in the ange 38 of the magazine support. ln this position the shouldered edge of the pawl cannot co-operate with the notch in the plunger. Immediately before the plunger completes its outward stroke, the plunger projection 65, co-operating with the hook-shaped end 62 of the pawl, unlocks the' latter and thereby returns the elements into the position shown in Fig. 4 of the drawings.

.From the foregoing it appears therefore that although the lpawl is lockedand unlocked,

that is to sayrendered inoperative and operative at the end of the feeding stroke and ofthe plunger,

mal operation of the device, that is to say while the said strokes are completed in either direction. However, when a feedingstroke has once been started, the plunger cannot be returned to a position in which it is capable of engaging the blade netbelow the topmost blade, of the stack. As appears from Fig. 4 of the drawings, inwhich the plunger the beginning of its feeding strek the shouldered'end of the-pawl bears agai st the inner face of the plunger flange 64, it being in its unlocked operative position. When now the plunger is moved on its feeding stroke and it is thereafter attempted to return it to the starting point of its feedingstroke, the pawl spring 59 projects the shouldered edge of the pavvl into the notch 67 as soon as the said notch is in alignment with the pawl. Thepawl shoulder 60, in cro-operation with the leading edge 68 of the notch, `prevents further outward but obviously permits the plunger to move again on its feeding stroke. inasmuch as ,the @ceding finger projects over-the rear end p rtion of the magazine when the pawl is seated in the notch 67, it is obvious that the rear-edge of the blade opening. The result is that jamming of the feeding mechanism cannot tale place.

during the norv t'is obvious that, while herein. a specific pawl mechanismhas been described for preventing the completion of the outward Stroke of the plunger unless the previousfeeding stroke has been completed, any othensuitable means may be made use of withoutdeparting from the inventionwhich lies mainly in the provision of a mechanism which vprej vents engagement of ablade in the magazine from being advanced by friction toward thev blade holder.

j at 'l claim is :f

1. A razor including a handle provided with a discharge'opening, a magazine within said handle adapted to hold a stack of blades,v

a plunger movable longitudinally on said handle for successively feeding blades from the stack toward said discharge opening, a spring-pressed pawl on said handle, said plunger being" provided with a notch inwhich said pawl'is adapted -to be seated, said notch beine' positioned to prevent said plunger to completeits idle stroke when said pawl is operative, and means on said plunger for renderin said pawl inoperative immediately prior to ie' end of its feeding stroke and operative immediately prior to the end of its idle stroke.

2. A razor including a handle provided with a discharge opening, a magazine within said handle adapted to hold a stack of blades and having a yielding end wall adjacent said discharge opening, means for successively feeding blades from the stacktoward said les adapted to move that portion of said magazine which is provided with the yielding end wall toward said discharge opening when said plunger is being moved on its idle stroke and partly uncovers the mouth of said magazine, whereby saidyielding end wall obstructs said discharge opening. f

3. A razor including a handle provided with a discharge opening, a magazine support within said handle, a magazine on said support adapted to hold a stack of blades and having a yielding end wall adjacent said discharge opening, means for successively feeding blades from the stack toward said discharge opening, andmeans on said support adapted to move that portion of said magazine which is provided with the yielding end wall toward said discharge opening when said plunger is being moved oriits idle strokellt? ' and partly uncovers the mouth of said magawithin said handle, a magazine .mounted on with a discharge opening,

. viously completed a feeding stroke.

zinc, whereb said yielding end wall obstructs said discharge opening.

4. A razor including a handle provided a magazine holder Within said handle, a magazine mounted on said holder adapted to receive a. stack of blades, a plunger movable longitudinally on said magazine holder for successively feeding blades from the stack toward said discharge opening, a spring-pressed paWl on said magazine holder, said plunger being provided with a notchin which said pawl is adapted to be seated, said notch being positioned to prevent said plunger from completing its idle stroke when said paWl is operative, and means on said plunger for rendering said paWl inoperative immediately prior to the end of its feeding stroke and operative immediately prior to the end of its idle stroke.

5. A razor including a handle provided with a discharge opening, a magazine holder` Within said handle, a magazine mounted on said holder adapted to receive a stack of blades, means for successively feeding blades from the stack toward said discharge open. ing, and co-acting means on said magazine holder and said feeding means for preventing the latter from engaging and advancing a blade from the stack toward said.' discharge opening before the topmost blade of the sta-ck has fully passed through said opening.

6. A. razor including a handle provided With a discharge opening, a magazine holder Within said handle, a magazine mounted on said holder containing a sta-ck of blades, a plunger movable longitudinally on said mag' azine holder for successively feeding blades from the stacktoward said discharge opening,.and co-acting means on said magazine holder and plunger permitting the latter to move freely on its feeding stroke but prevent ing the same from returning to the starting point of its feeding stroke unless it has pre-1 7. A razor including a handle provided With a discharge openmg, a magazine holderv Within said handle, a magazine mounted on said holder containing a stack of blades, a plunger movable longitudinally on said magazine from the stack toward said discharge opening,

, and a' pawl mechanism mounted on said magazine holder permitting said plunger'to move freely on its feeding stroke but preventing the saine from returning to the starting point of'its feeding stroke unless it has previously Y completed a feeding stroke.

8. A razor including a' handle provided With a discharge opening, a magazine holder said handle containing a 'stack of blades, a plunger movable across the mouth of said magazine for feeding the topmost blade from the stack toward said discharge opening, and

holder for successively feeding bladesl co-acting means on said magazine holder and said plunger for preventing the latter from the stack toward said discharge opening, and n la pawl mechanism co-operating with said plunger for preventing the latter from Wholly uncovering the mouth of said magazine unless it has prevlously completed a'feedingv stroke.

10. A razor including a handle provided With a discharge opening, a magazine holder Within said handle, a magazine mounted on said holden adapted to contain a stack of blades, a spring co-operating with said magazine for feeding the blades out from said magazine into position to be fed, a plunger movable longitudinally on said magazine holder having a ingenfor moving a blade from the stack toward said discharge opening, said spring acting when at the end of the idle strokeof saidy plunger said finger has Wholly uncovered the mouth of said magazine, and co-acting means on said magazme holder and said plunger for preventin said finger from uncovering the mouth o 'said magazine unless saidiplunger has previously completed a feeding stroke.

11. A. razor including a With a discharge opening, a magazine holder Within said handle, a magazine mounted on said holder adapted to contain a lstack of blades, a spring co-operating vvith said magazine for feeding the blades outv from said magazine into position to be fed, a plunger movable longitudinally on said magazine holder having a finger for Umoving a blade from the stack toward said discharge open.

ing, said spring acting when at the end of the idle stroke of said plunger said finger has Wholly uncovered the mouth of said magazine, and 'a pawl mechanism on said magazine holder co-operating with said plunger for preventing said finger from uncovering the mouth of said magazine unless said plunger has previously completed`a feeding Signed atNew Yorkcity, in the county of New York, day of January, A. D. 1929.

JOSEPH H and State of New York, this 28th 

